13.2 Assignment

What are complementary angles?

• Angles that add up to 90^o

• Angles that add up to 180^o

• Angles that form a straight line

• Angle that touch

Given that sin(59^o)=0.857, what is the cosine of a complementary angle?

• 0.857

• 0.515

• 59

• 31

Given that cos(39^o)=0.799, what is the sine of a complementary angle?

• 0.799

• 0.629

• 39

• 51

Find sin(A), round your answer to the nearest one hundredth if needed.

• 0.95

• 0.32

• 1.06

• 3.08

Find cos(A). Round your answer to the nearest one hundredth if needed.

• 0.47

• 0.88

• 2.13

• 1.13

Solve for x. Round to the nearest tenth if needed.

• 14.3

• 20.5

• 16.4

• 12

Solve for the measure of angle P. Round to the nearest degree if needed.

• $73\degree$

• $1\degree$

• $17\degree$

• $90\degree$